PREVALENCE OF THE TARSAL TUNNEL SYNDROME IN RHEUMATOID ARTHRITIS

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Abstract
Forty-eight patients with definite or classical rheumatoid arthritis (RA) were studied for the presence of tarsal tunnel syndrome (ITS). Nerve conduction velocities and distal latencies were determined in a constant temperature room and the findings compared with a group of 35 normal, age-matched subjects. After excluding four patients with peripheral neuropathy, a definite delay in the distal motor latency of the tibial nerve was documented in 11 subjects (25%). Two of the 11 had foot symptoms suggestive of ITS. These 11 patients with prolonged distal motor latencies did not otherwise differ from R A patients without TTS in terms of disease duration or severity, treatment, or the presence of foot deformity. Thus, compressive neuropathy of the branches of the posterior tibial nerve is a relatively frequent finding in patients with definite or classical RA.

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